private void button17_Click(object sender, EventArgs e)
 {
     PrintReservationReceipt printReservationReceipt = new PrintReservationReceipt(Model);
     printReservationReceipt.Dock = DockStyle.Fill;
     printReservationReceipt.MdiParent = this.MdiParent;
     printReservationReceipt.Show();
     printReservationReceipt.WindowState = FormWindowState.Maximized;
 }
        private void printReceiptReservationButton_Click(object sender, EventArgs e)
        {
            PrintReservationReceipt form = new PrintReservationReceipt(Model);

            form.Dock = DockStyle.Fill;
            form.MdiParent = this.MdiParent;
            form.Show();
            form.WindowState = FormWindowState.Maximized;
        }